Turn a github.com URL into a git.io URL.

gistfile1.rb

#!/usr/bin/env ruby
# Usage: gitio URL [CODE]
#
# Turns a github.com URL
# into a git.io URL
#
# Copies the git.io URL to your clipboard.

require 'net/http'
require 'clipboard'

class Git
  URI = URI.parse('http://git.io/').freeze

  def self.io (url, code=nil)
    pars = {'url' => url }
    pars.merge!({'code' => code.to_s}) if code
    res = Net::HTTP.post_form(URI, pars)
    puts(res['location'] ? Clipboard.copy(res['location']) : res.body)
  end
end

Git.io(*ARGV)